Denon AVR-2308CI Service Manual page 32

Q Q
3 7 6 3 1 5 1 5 0
P
Input
CVBS
1U-3853-1 A.VIDEO UNIT
To troubleshooting 1.1 Power not turn
Check 5VA. NG
on.
+5VA : CX077-3,4pin
-5VA : CX077-5pin
OK
Check input/output of analog SW.
NG
Input : IC109-13pin
Output : IC109-3pin
OK
Check input/output of AMP.
NG Check soldering of IC115 and
Input : IC115-5pin
surrounding parts.
Output : IC115-7pin
OK
Check output to 1U-3852 DIGITAL UNIT. NG
Output V : CX113-5pin
OK
To troubleshooting 3.HDMI/DVI.
Unless specified, 1U-3853-1 A.VIDEO UNIT part.
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
.
http://www.xiaoyu163.com
Check analog SW settings.
Check IC301 and CX073
NG
IC109-9,10,11pin : L(0V)
soldering, or DIGITAL UNIT flaw.
IC109-6pin : L(0V)
OK
Check soldering of IC109.
Check soldering of CX113.
x a o u 1 6 3
y
i
http://www.xiaoyu163.com
8 9
OK
OK
OK
OK
Q Q
3 7 6 3 1 5 1
c o
.
32
AVR-2308CI / AVR-888 / AVR-2308 / AVC-2308
2 4 9 8 2
NG
NG NG
OK
NG
NG
5 0 8 9 2 4 9 8 2
m
9 9
9 9